Finding the Fourth Proportional to 13,632,133.55, 18,812,343.15 and 7,520,562.05
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Solution
The fourth proportional to 13,632,133.55, 18,812,343.15 and 7,520,562.05 is: 10,378,374.99
Step by Step Solution
- Step 1: Write the proportion equation
13,632,133.55 : 18,812,343.15 = 7,520,562.05 : x - Step 2: Convert to fraction form
13,632,133.55/18,812,343.15 = 7,520,562.05/x - Step 3: Cross multiply
13,632,133.55x = 18,812,343.15 × 7,520,562.05 - Step 4: Simplify right side
13,632,133.55x = 141,479,393,871,405.72 - Step 5: Solve for x
x = 141,479,393,871,405.72/13,632,133.55 - Step 6: Final answer
x = 10,378,374.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.